SU1281988A1 - Электрохимический датчик дл измерени концентрации глюкозы - Google Patents
Электрохимический датчик дл измерени концентрации глюкозы Download PDFInfo
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- SU1281988A1 SU1281988A1 SU843710780A SU3710780A SU1281988A1 SU 1281988 A1 SU1281988 A1 SU 1281988A1 SU 843710780 A SU843710780 A SU 843710780A SU 3710780 A SU3710780 A SU 3710780A SU 1281988 A1 SU1281988 A1 SU 1281988A1
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- USSR - Soviet Union
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- electrode
- working chamber
- glucose concentration
- measuring glucose
- electrochemical transducer
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Description
-f
2
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ю ас
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Изобретение относитс к аналити- ческому приборостроению и может быть использовано в биохимии дл определени глюкозы.
Целью изобретени вл етс повышение чувствительности и точности измерений в широком диапазоне измер емых концентраций.
На чертеже представлена схема электрохимического датчика дл определени глюкозы.
Электрохимический датчик состоит из корпуса 1 с входным 2 и вькод- ным 3 каналами дл подвода электро- лита и отверстием 4 дл подачи исследуемой пробы, внутренней рабочей камеры 5 с размещенным в ее стенке измерительным электродом 6, снабженным селективной мембраной 7, электродом 8 сравнени , а в днище рабочей камеры установлен дополнительный вспомогательный электрод 9, выполненный из неблагородного металла, например из титана,причем отношение площади активной поверхности рабочего электрода и площади активной поверхности вспомогательного электрода выбрано в пределах 0,12-0,35,
На основе многократных исследований установлены оптимальные размеры электродов, т.е. высока чувствительность и точность определений при широком диапазоне концентраций глюко- зы (0-30 мм) показаны при выборе соотношений 0,12-0,34.
В таблице показано, как мен етс точность измерений при выходе за указанные границы.
,06
,12
,24
1
5
10
15
30
1
5
10
15
30
1
5
10
О О О О
о
0,05
0,05
0,05
0,05
0,05
0,1
0,1
0,1
1
5
9,4 2,1 4,9
1,05
5,05 OjO 4,9 8,8
1,1
5,1
0,1
О
О
-0,6 -2,9 -5,1
0,05
0,05
О -0,1
-1.2 0,1 0,1 0.1
О
О
4,0 19,3 17,0
5
1
О
0,6
4 10
2
1
Продолжение таблицы
Claims (2)
1. ЭЛЕКТРОХИМИЧЕСКИЙ ДАТЧИК ДЛЯ ИЗМЕРЕНИЯ КОНЦЕНТРАЦИИ ГЛЮКОЗЫ, содержащий корпус с размещенной в нем рабочей камерой с отверстием для ввода анализируемой пробы, входным и выходным патрубками соответственно для подвода и отвода электролита, измерительным электродом, установленным в стенке рабочей камеры, который снабжен селективной мембраной и электродом сравнения, отличающийся тем, что, с целью повышения чувствительности и точности измерений в широком диапазоне измеряемых концентраций, в днище рабочей камеры дополнительно установлены вспомогательный электрод из металла, инертного по отношению к анализируемой среде, причем отношение площадей активных поверхностей рабочего и вспомогательного электродов выбрано в пределах 0,12-0,35.
2. Датчик поп.1, отличающийся тем, что в качестве материала вспомогательного электрода используют титан.
SU„, 1281988 А1
1 -12.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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SU843710780A SU1281988A1 (ru) | 1984-03-15 | 1984-03-15 | Электрохимический датчик дл измерени концентрации глюкозы |
LTRP1164A LT2322B (lt) | 1984-03-15 | 1993-09-27 | Elektrocheminis daviklis gliukozes koncentracijai matuoti |
Applications Claiming Priority (1)
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SU843710780A SU1281988A1 (ru) | 1984-03-15 | 1984-03-15 | Электрохимический датчик дл измерени концентрации глюкозы |
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SU1281988A1 true SU1281988A1 (ru) | 1987-01-07 |
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SU843710780A SU1281988A1 (ru) | 1984-03-15 | 1984-03-15 | Электрохимический датчик дл измерени концентрации глюкозы |
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US5469846A (en) * | 1992-10-19 | 1995-11-28 | Duquesne University Of The Holy Ghost | Implantable non-enzymatic electrochemical glucose sensor |
US5961799A (en) * | 1996-09-03 | 1999-10-05 | Nec Corporation | Compact apparatus for measuring a liquid component in a liquid sample |
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